Turn on thread page Beta
    • Thread Starter
    Offline

    0
    ReputationRep:
    k, i'm pretty sure this is easy, but can't seem 2 work it out!
    Q7). The points P and Q lie on the curve with equation y=e(.5x)
    The x-coordinate of P and Q are ln4 and ln16 respectively.
    a). Find and equation for the line PQ
    c). Calculate the length, to 3 sig. figures of the line segment PQ

    thanx in advance!
    Offline

    2
    ReputationRep:
    a) Find the y coordinates of P and Q. With this you can find the gradient of the line PQ by m= (y_q - y_p)/(x_q-x_p).
    Then put the coordinates of P or Q into
    y-y_1 = m(x-x_1)
    c) Use Pythagoras.
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: February 5, 2006

University open days

  • University of Roehampton
    All departments Undergraduate
    Sat, 17 Nov '18
  • Edge Hill University
    Faculty of Health and Social Care Undergraduate
    Sat, 17 Nov '18
  • Bournemouth University
    Undergraduate Open Day Undergraduate
    Sat, 17 Nov '18
Poll
Black Friday: Yay or Nay?
Useful resources

Make your revision easier

Maths

Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

Equations

How to use LaTex

Writing equations the easy way

Equations

Best calculators for A level Maths

Tips on which model to get

Student revising

Study habits of A* students

Top tips from students who have already aced their exams

Study Planner

Create your own Study Planner

Never miss a deadline again

Polling station sign

Thinking about a maths degree?

Chat with other maths applicants

Can you help? Study help unanswered threads

Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.